Injector oil-burner for boiler-furnaces



(No Model.) 3 SheetsSheet 1.-

J. H. JONES. INJECTOR OIL BURNER FOR BOILER FURNAOES.

Patented Jan. 6, 1891.

(No Model.) 3 sheets-sheet 2.. J. H. JONES. INJECTOR OIL BURNER FOR BOILER PURNAGES.

Patented Jan.6, 1891.

NORRIS vc-rsns 00.. mom-um (No Model.) 3 Sheets-Sheet 3. J. H. JONES. INJECTOR OIL BURNER FOR BOILER IURNAGES No. 444,115.

Patented Jan.6,1891.

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, UNITED STATES PATENT OFFICE.

JAMES HENRY JONES, OF SAN FRANCISCO, CALIFORNIA.

INJECTOR OIL-BURNER FOR BOILER-FURNACES.

SPECIFICATION forming part of Letters Patent No. 444,115, dated January 6, 1891.

Application filed July 20, l 8 8 9.

To all whom it may concern:

Beit known that I, JAMES HENRY JONES, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Injector Oil- Burners for Boiler-Furnaces; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improvement in devices for promoting the combustion in steam-boiler furnaces, the object being to make a more complete and perfect burning of all the gases; and the invention therefore consists in the construction, arrangement, and combination of the several parts, substantially as willbe hereinafter described and claimed.

In the accompanying drawings, illustrating my invention, Figure l is a longitudinal vertical section of a marine return-flue boiler, my improved apparatus for furnishing a supplementary fuel being shown arranged therewith and represented in dotted lines. Fig. 2 is a top plan view of the same. Fig. 3 is a left end elevation. Fig. 4 is a right end elevation. Fig. 5 is an enlarged vertical section of my mechanism for injecting the concentrated fuel to be used with the common fuel.

Similar letters of reference designate corresponding parts throughout all the different figures of the drawings.

A denotes, in general, a marine return-flue boiler. I have selected this kind of a boiler for illustration only, and do not desire to be confined thereto, as my invention is applicable to all kinds of boilers. The boiler A has the furnace B, the flues a a leading from the furnace B to the back connection 0, and the return-fines b 1) leading from the back connection O to the uptake or chimney D. This construction of course is no part of my invention, and is given for explanation merely.

The devices whereby I furnish the common fuel usually employed with the concentrated supplementary fuel for the purpose of promoting the combustion and insuring a more complete ignition of the gases may be connected to the boiler at its furnace B or at its back connection C or at both points. In the Serial No. 318,118. (No model.)

drawings I have shown mechanism located at both points. In'Fig. 1 it will be seen c011- nected with the furnace-chamber immediately behind the grates, and also at the back connection 0, where it can discharge transversely across the back connection, so as to break up and redistribute the gases at that point, as well as to completely consume. them.

My improved device embraces the forcing of air, steam, and petroleum or other oils into the furnaces of boilers and into the rear connections, thus creating a flame which the escaping atoms of carbon will have to pass through. This insures almost perfect combustion without smoke. The proper quantity of air and steam and oil will be regulated by an arrangement of valves, &c., as will be now described.

In order to provide a constant current of air to admit to the boiler, I use a suitable engine located, preferably, at one side of the boiler near the grate and arranged to operate a fan and thus generate a current of air. Any kind of engine may be used. E denotes this engine, and c a horizontal air-pipe which receives the air from the fan. The engine E is driven by steam supplied through the pipe 0. This pipe runs longitudinally alongside of the boiler. It is provided with two valves 0' 0', located on each side of the point where the vertical steam-pipe d, that conveys steam from the boiler, connects with the horizontal pipe 0. (See Figs. 1 and 3.) The pipe dis provided with a valve (1 to regulate the admission thereinto of steam from the boiler and with a valve 61, located at its intersection with pipe 0, so as to regulate the course of the steam, and also with valves f opposite the injector and valve f below the latter. Manifestly steam coming through pipe at from the boiler will be delivered to pipe 0 and conducted thereby in two directions, under the control, of course, of valves 0 c, to the engine E, and to the injecting devices adjacent to the back-connection C. The pipe 01 also delivers. steam to the injector which admits air, steam, and oil to the furnace B. The pipe e carries air into the upper end of the injecting device. The pipe g carries oil up from the oil-reservoir F into the injector.

In Fig. 5 I have shown in anenlarged sectional view the detailed construction of the injector which throws the oil, air, and steam into the furnace or into the back connection, as the case may be. By referring to that figure it will be seen that steam comingthrough steam-pipe d enters the horizontal tube G. The oil is conveyed into the injector by the pipe 9, which is differently arranged from what is shown in Figs. 1 and 3. The pipe 9 delivers the oil into the vertical pipe 71, located within the cylindrical barrel II, which is entered by the air-pipe c, as shown. The lower end of pipe h opens into a tube I, which surrounds the tube G, it being so arranged as to afford an annular space between itself and said tube G, the ends of which space are closed, but the pipe I communicates with pipe G through openings or small apertures in the wall of the latter, as shown at t 2', so that oil coming through pipe 7L will mingle with the steam within the tube or pipe G. The end of tube G is formed with an opening J, within which is located a tapering plug K on the end of a red It, extending through the tube G, its other end being screw-threaded and located in a screw-threaded box and provided with an external hand-wheel by the mz'tnipulation of which the plug K can be adjusted so as to open or close the mouth or nozzle J. Through the nozzle J the connningled steam and oil will be ejected by reason of the pressure in the pipes which convey these substances into the injector. Air enters the device through pipe 6 and fills the annular space around the pipe 7: within the cylinder ll, through which it passes downward into the cylinder L and into the annular space around the aforesaid tube I, said cylinder L being open-ended, so as to provide the mouth M, through which the airisdischarged,this discharge oftheairbcing eiteeted and facilitated by the induction action of the current of con'imingled steam and oil passing outthrough the opening J. Thus it will be manifest that the air, steam, and oil will be injected at any point where the mouth M may be located, and hence if it be placed within the furnaceit will be apparent that the injector willadd to the common fuel in said furnace the concentrated fuel consisting of air, oil, and steam, and thus the combustion will be promoted in accordance with the principles already hereinabove described.

I have now described the injector which delivers the concentrated fuel into the furnace and have explained the operation and purpose of the same. Another injector is usually and preferably located so as to deliver concentrated fuel into the back connections of the boiler; but as the construction of both injectors is substantially the same it is needless to repeat the description of the construction and use of the latter.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is I 1.. The combination of the boiler A, the engine E, arranged to generate a current of air, the air-fan operated by said engine, the horizontal air-pipe e, which receives air from the fan, the steam-pipe c, for supplying steam to drive the engine E, said steam-pipe 0 being provided with valves 0' 0', located on each side of the point where the vertical steampiped connects with the horizontal pipe 0, the vertical stean'rpipe (I, that conveys steam from the boiler, said pipe havinga valve (Z to regulate the admission thereinto of steam from the boiler, and also with a valve (1, located at its il'llOlSOCtlOll with pipe 0, so as to regulate the course of the steam, and also with a valve f opposite the injector and a valve f" below the latter, and the injector-tube G, with valve K located in the end of saidtube, substantially as described.

The combination of the boiler A, the enginc E, arranged to operate a fan and thus generate a current of air, the injector consisting of tube G, having mouth .l, the valve K, located within said mouth, said tube G having also the openings i "1', the oil-tube I, surrounding the tube G, the air-tube L, the air-fan, the horizontal air-pipe e, which receives the air from the fan, the steam-pipe c, for supplying steam to drive the engine E, said steam-pipe 0 having valves 0 0 located 011 each side of the point where the vertical steam-pipe d connects with the horizontal pipe 0, the vertical stean1-pipe (Z, for conveying steam from the boiler, said pipe (Z having a valve ('1 to regulate the admission thereinto oi": steam from the boiler, and with a valve cl, located at its intersection with pipe 0 to regulate the course of the steam, and also with the valve f opposite the injector and the valve f below the latter, substantially as described.

In testimony whereof Iai'iix my signature in presence of two witnesses.

JAMES HENRY J ONEI.

\Yitnesses:

JOHN T. MCKENZIE, Cine. 0. WATRIss. 

